CN104650735B - A kind of nano-photo catalytic is compound except haze is dispelled aldehyde emulsion paint and preparation method thereof - Google Patents
A kind of nano-photo catalytic is compound except haze is dispelled aldehyde emulsion paint and preparation method thereof Download PDFInfo
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- CN104650735B CN104650735B CN201510011175.7A CN201510011175A CN104650735B CN 104650735 B CN104650735 B CN 104650735B CN 201510011175 A CN201510011175 A CN 201510011175A CN 104650735 B CN104650735 B CN 104650735B
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- 239000003973 paint Substances 0.000 title claims abstract description 40
- 239000000839 emulsion Substances 0.000 title claims abstract description 31
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 27
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 title claims abstract description 25
- 150000001875 compounds Chemical class 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000006210 lotion Substances 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 16
- 239000002562 thickening agent Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000013530 defoamer Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000004908 Emulsion polymer Substances 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 238000005360 mashing Methods 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 239000011164 primary particle Substances 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims 3
- 239000002153 silicon-carbon composite material Substances 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 19
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 12
- 239000004816 latex Substances 0.000 abstract description 10
- 229920000126 latex Polymers 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003610 charcoal Substances 0.000 abstract description 7
- 150000003377 silicon compounds Chemical class 0.000 abstract description 6
- 229910021529 ammonia Inorganic materials 0.000 abstract description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 3
- 239000008096 xylene Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 230000001151 other effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 50
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 239000011787 zinc oxide Substances 0.000 description 10
- 230000001699 photocatalysis Effects 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 241000276489 Merlangius merlangus Species 0.000 description 4
- -1 addition Gui Zao Ni Substances 0.000 description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 235000010215 titanium dioxide Nutrition 0.000 description 3
- 150000001253 acrylic acids Chemical class 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
It is compound except haze is dispelled aldehyde emulsion paint the invention discloses a kind of nano-photo catalytic, it is characterized in that, including following components and its percentage by weight：Water：20‑25%；High score subclass dispersant：1.5‑2%；Multifunctional assistant：2‑2.5%;Nano-photo catalytic charcoal silicon compound material：25‑35%；Color stuffing：15‑20%；Lotion：20‑30%；Coalescents：1‑2%；The emulsion paint can effectively draw the dirt of PM2.5 micronic dusts, free formaldehyde, benzene,toluene,xylene, ammonia etc. present in environment for a long time；The invention also discloses a kind of method for preparing above-mentioned composite air purification emulsion paint, it can lift latex paint and effectively draw the dirt of PM2.5 micronic dusts, free formaldehyde, benzene,toluene,xylene, ammonia and other effects.
Description
Technical field
The present invention relates to fine chemistry industry paint field, and in particular to it is micro- that one kind can effectively draw PM2.5 present in environment
Dustiness and free formaldehyde emulsion paint, and the preparation method of the emulsion paint.
Background technology
With economic continuous development, the raising of people's environmental consciousness is promoted, environment-friendly quality problem is subject to that people's is wide
General concern, the use of a large amount of finishing materials also result in the continuous deterioration of indoor air quality while quality of the life is improved；It is existing
Some air purification are dispelled formaldehyde-latex product, and major technique is that material, these materials such as addition Gui Zao Ni ﹑ bamboo charcoals are porosity knot
Structure, analysis is limited absorption from principle, and non-real response type is adsorbed and decomposed, and adds what this kind of material PARA FORMALDEHYDE PRILLS(91,95) removed
Effect is bad, also not lasting.
Although the formulation of " air purification " emulsion paint, has at home and abroad there is history for many years, due to technology not into
It is ripe, it can not realize " nano inorganic material ", acrylic emulsion, nano zine oxide liquid material, while be applied in latex paint formulation,
To lift latex paint, effectively to draw present in environment PM2.5 micronic dusts dirty and persistently remove aldehyde effect.
The content of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, and ring can effectively be drawn for a long time by providing one kind
The dirty emulsion paint with free formaldehyde of PM2.5 micronic dusts present in border.
Another object of the present invention, which also resides in, to be provided one kind and can lift latex paint effectively to draw PM2.5 micronic dusts dirty and decompose
The nano-photo catalytic of free formaldehyde effect is compound except haze is dispelled the preparation method of aldehyde emulsion paint.
The object of the present invention is achieved like this：
A kind of nano-photo catalytic is compound except haze is dispelled aldehyde emulsion paint, it is characterized in that, including following components and its weight percent
Than：
Water：20-25%；
High score subclass dispersant：1.5-2%；
Multifunctional assistant：2-2.5%;
Nano-photo catalytic charcoal silicon compound material：25%-35%；
Color stuffing：15-20%；
Lotion：20-30%；
Coalescents：1-2%.
The nano-photo catalytic type of the present invention is dispelled aldehyde emulsion paint except haze, is answered by using net taste Ru Ye ﹑ nano-photo catalytic charcoal silicon
Close raw material and various auxiliary agents, enable obtained emulsion paint realize effectively and draw for a long time PM2.5 micronic dusts present in environment it is dirty and
Free formaldehyde；It is additionally, since " nano-photo catalytic charcoal silicon compound material ", " nano-catalyst zinc oxide " activity of itself of use
It is lasting, is applied as primary active material in coating, the term of validity is generally can guarantee that by anti-fatigue test 10 years.
As the scheme further optimized, the nano-photo catalytic inorganic raw material system nanometer Tio2, its optimum weight
Hundred parts of ratios are preferably tied up between 25-35%.
The net taste lotion system is free of the net taste emulsion polymer of APEO classes；The high score subclass dispersant includes one kind or two
Kind high score subclass special acrylic acid polymer.
As further more specifically scheme, the color stuffing include following one or several kinds of components：Rutile titanium dioxide
Powder, coarse whiting and talcum powder；Such as：Pigment system rutile type titanium white, two kinds of component compositions of filler system coarse whiting and talcum powder.
As more specifically scheme, the high score subclass dispersant includes one or two kinds of high score subclass special acrylic acids and gathers
Compound.
As more preferably scheme, the multifunctional assistant includes thickener and defoamer；Wherein, thickener can be levelling
Agent and cellulose association thickener or both exclusive uses, defoamer is mineral oil modified silicone.
It is another object of the present invention to what is be achieved in that：
It is a kind of compound except haze is dispelled the preparation method of aldehyde emulsion paint, it is characterized in that, include the following steps,
Step 1, premixing：Suitable water, high score subclass dispersant and multifunctional assistant are added in dispersion cylinder, is made each
Component is sufficiently mixed the material for uniformly, generating colloidal, spare；
Step 2, grinding distribution：In above-mentioned manufactured colloidal material, add nano-photo catalytic charcoal silicon compound material and
Color stuffing, under high-speed dispersion equipment, mashing grinding a period of time, meanwhile, color stuffing is made in the high-rate of shear of high-speed stirred
Under, primary particle is dispersed into, and under the action of dispersing aid system, obtains stably dispersing state, until being made thin
Spend the white slurry material in below 45um；
Step 3, adds lotion：Into the above-mentioned white slurry material that fineness requirement is made, the water of remaining part is added, then,
Lotion is added, is uniformly mixed；
Step 4, adds other auxiliary agents：Sequentially add suitable coalescents and multifunctional assistant, removed with being made required
Haze is dispelled aldehyde emulsion paint；
Step 5, packaging：By above-mentioned except haze aldehyde emulsion paint of dispelling is fitted into tank body.
The preparation method of above-mentioned emulsion paint, by processes such as premixing, grinding distribution and addition lotions, is realized " nanometer
Catalysis material " is applied in latex paint formulation, lifted latex paint except haze is dispelled aldehyde clean-up effect, moreover, technique is simply easy
In control, it is adapted to requirements of mass production.
As further specific scheme, in above-mentioned steps one, also need to be separately added into suitable wetting in dispersion cylinder
Agent and PH conditioning agents；In step 4, it is also necessary to add suitable rheological agent.
In addition, in above-mentioned steps one, each component is sufficiently mixed uniformly, its speed of agitator control 300-500RPM it
Between；In above-mentioned steps two, the rotating speed of high-speed stirred is controlled between 1200-1400RPM；And in step 3, the control of its rotating speed exists
Between 500-700 RPM.
Beneficial effects of the present invention are as follows：
The nano-photo catalytic type of the present invention is dispelled aldehyde emulsion paint except haze, due to adding nano-photocatalyst material in formula and answering
With unique dispersion technology, nano-titania particle and anion uniform particle is distributed in film coated surface, swash in light irradiation
Oxidized the formaldehyde into after hair and be decomposed into carbon dioxide and water, moreover, the activity of nano-photo catalytic inorganic material in itself is lasting, made
It is main materials application in coating, can generally ensures the term of validity by anti-fatigue test 10 years, therefore, emulsion paint can have for a long time
The decomposition of the dirt of PM2.5 micronic dusts, free formaldehyde, benzene,toluene,xylene, ammonia present in environment etc. is drawn, and can sustained release
Negative oxygen ion, is passing through the comparison test to different material properties repeatedly, the dirt of PM2.5 micronic dusts, free formaldehyde, benzene, toluene, two
Toluene, ammonia etc. filter out the respective material good with formula compatibility, can protrude the excellent properties of product and effectively dispel for a long time
Except formaldehyde and purifying air effect.
（2）The present invention's dispels aldehyde emulsion paint preparation method except haze, passes through premixing, grinding distribution and adds the works such as lotion
Sequence, realizes and nano-photocatalyst material is applied in latex paint formulation, lifted latex paint except haze is dispelled aldehyde effect and anion
Release property, technique is simple, easily controllable, be adapted to requirements of mass production.
Brief description of the drawings
Fig. 1 is the present invention except haze is dispelled the preparation method flow diagram of aldehyde emulsion paint；
Fig. 2 is nano-ZnO formaldehyde degradation by photocatalytic oxidation process and the first mechanism figure of antibacterial；
Fig. 3 is the second mechanism figure of nanometer Tio2 formaldehyde degradation by photocatalytic oxidation process.
Fig. 4 is the mechanism figure of nanometer Tio2 formaldehyde degradation by photocatalytic oxidation process.
Embodiment
The present invention is described in further detail with reference to specific embodiment：
A kind of nano-photo catalytic type is dispelled aldehyde emulsion paint except haze, it is characterized in that, including following components and its percentage by weight：
Water：20-25%；
High score subclass dispersant：1.5-2%；
Multifunctional assistant：2-2.5%;
Nano-photo catalytic charcoal silicon compound material：25%-35%；
Color stuffing：15-20%；
Lotion：20-30%；
Coalescents：1-2%.
As more particular embodiment：Above-mentioned nano-photo catalytic inorganic raw material system nanometer Tio2, its optimum weight hundred
Part ratio is tied up between 25-35%；
The color stuffing includes following one or several kinds of components：Rutile type titanium white, coarse whiting and talcum powder；Such as：Pigment
It is rutile type titanium white, two kinds of components of filler system coarse whiting and talcum powder form, its part by weight is suitably selected according to actual needs.
As more specifically scheme, the high score subclass dispersant includes one or two kinds of high score subclass special acrylic acids and gathers
Compound.
As more preferably scheme, the multifunctional assistant includes thickener and defoamer；Wherein, thickener can be levelling
Agent polyurethanes thickener and cellulose association thickener or both exclusive uses, defoamer are that mineral oil is modified
Silicone.
Above-mentioned emulsion is preferably free of the net taste emulsion polymer of APEO classes；
As above-mentioned nano-photo catalytic type except haze is dispelled a specific embodiment of aldehyde emulsion paint, its each component and quality hundred
Divide ratio as follows：
Water：25%；Dispersant：2%；Multifunctional assistant：2.5%;Nano-photo catalytic charcoal silicon compound material：30%；Color stuffing：
20%；Lotion：25%；Coalescents：1%.
As shown in Figure 1：A kind of nano-photo catalytic type is dispelled the preparation method of aldehyde emulsion paint except haze, it is characterized in that, including it is as follows
Step,
Step 1, premixing：Suitable water, dispersant, defoamer, wetting agent, cellulose and PH are added in dispersion cylinder
Conditioning agent, makes each component be sufficiently mixed the material for uniformly, generating colloidal, spare；
Step 2, grinding distribution：In above-mentioned manufactured colloidal material, add nano-photo catalytic inorganic raw material and face is filled out
Material, under high-speed dispersion equipment, mashing grinding a period of time, meanwhile, color stuffing high-speed stirred high-rate of shear effect under,
Precursor is dispersed into, and under the action of dispersing aid system, obtains stably dispersing state, is existed until fineness is made
The white slurry material of below 45um；
Step 3, adds lotion：Into the above-mentioned white slurry material that fineness requirement is made, the water of remaining part is added, then,
Lotion is added, is uniformly mixed；
Step 4, adds other auxiliary agents：Suitable coalescents, defoamer, rheological agent, thickener are sequentially added, with system
Obtain required aldehyde removing latex paint；
Step 5, packaging：By above-mentioned except haze aldehyde emulsion paint of dispelling is fitted into tank body.
In above-mentioned steps one, each component is sufficiently mixed uniformly, its speed of agitator is controlled between 300-500RPM；On
State in step 2, the rotating speed of high-speed stirred is controlled between 1200-1400RPM；And in step 3, its rotating speed is controlled in 500-
Between 700 RPM.
The mechanism and effect of nano-ZnO formaldehyde degradation by photocatalytic oxidation process and antibacterial are as follows：
Nano-ZnO has very high catalytic activity, is a kind of photocatalytic semiconductor antiseptic.As a kind of semiconductor, ZnO
It is direct transition, semiconductor material with wide forbidden band (E=3.37 eV), equivalent to the energy that wavelength is 368 nm photons, has higher
Exciton bind energy (60 meV), nano-ZnO absorb energy be higher than its energy gap shortwave light radiation, produce electron transition,
Electronics in valence band will be excited to conduction band, voluntarily decomposite the negatively charged high activity electronics (e moved freely- ), together
When in valence band also produce with positive charge hole (h+ ), form one electronics pair of hole, under electric field action, electron hole pair
Separation occurs and moves to the diverse location on ZnO surfaces.Be distributed in the hole on ZnO surfaces and absorption in the OH- on surface and
H2O is oxidized to OH free radicals, and activating oxygen and hydroxyl, high activity electronics then has very strong redox, can incite somebody to action
The hydrogen reduction on ZnO surfaces can also reduce the metal ion in water, so as to improve photocatalytic degradation organic matter into O-2
Ability；Reach bactericidal effect.
h v
ZnO ----→ e-+h+ (2)
O2+e- ---→ ·O2- (3)
Peroxide is possible to form hydrogen peroxide by protonation reaction in the solution:
·O2- + H+ --→·HO2 (4)
·HO2+ ·HO2 --→H2O2+ O2 (5)
·O2-+ ·HO2 --→ O2+ HO2- (6)
HO2- + H+ ---→H2O2 (7)
Hydroxyl radical free radical is produced by various approach:
H2O2 →2·OH (8)
The mechanism and effect of nanometer Tio2 formaldehyde degradation by photocatalytic oxidation process：
Tio2 is after by light irradiation excitation of the wavelength less than 387.5nm, in Tio2 Surface Creations photic electric (ecb ﹣) and hole
（Hvb+), move to dissolved oxygen and water of the surface of solids respectively with its surface to react, Zi You Ji ﹒ of the generation with high activity
OH ﹑ O2, these free radicals are considered as the main active substances of Tio2 light-catalyzed reactions, they are provided for the deep oxidation of formaldehyde
The catalyst of high activity, can oxidize the formaldehyde into and be decomposed into carbon dioxide and water.
The intermediate product of the Photocatalytic Oxidation of formaldehyde is formic acid, finally by oxygenolysis into carbon dioxide and water, and
Nano-photo catalytic inorganic raw material is added in formula and accelerates absorption and degradation efficiency of the formaldehyde in air on paint film.
As shown in Fig. 2, it is light-catalyzed reaction principle（There is optical condition）：
Under the light of the nm of wavelength≤387.5, nanometer Tio2 electronics will be excited to conduction band, so that electronics is formed, hole pair
(e and h+), O2 and H2O in air generate superoxide radical O2 and hydroxyl radical free radical OH after functioning.
Powder particle（hv）→h++e
H2O + h+→·O H + H+
O2 + e → O2·
2O2· + 2 H2O → O2+H2O2
H2O2 + e → ·O H + O H-
As shown in figure 3, it is except aldehyde principle
（Chemisorbed）Very bigger serface
（Photocatalysis）Radical reaction
HCHO（Formaldehyde）→HCOOH→H2O+CO2
CH3CHO（Acetaldehyde）→ C H3CHOOH → H2O+CO2
C6H5CH3（Toluene）→ H2O+CO2
Organic matter → H2O+CO2.
Claims (2)
1. a kind of nano-photo catalytic is compound except haze is dispelled aldehyde emulsion paint, it is characterized in that, including following components and its percentage by weight：
Water：20-25%；
High score subclass dispersant：1.5-2%；
Multifunctional assistant：2-2.5%;
Nano-photo catalytic carbon silicon compound material：25%-35%；
Color stuffing：15-20%；
Lotion：20-30%；
Coalescents：1-2%；
The multifunctional assistant includes thickener and defoamer；Wherein, thickener is cellulose association thickener；
The nano-photo catalytic carbon silicon compound material system carbon silicon composite Nano-TiO2, hundred parts of ratios of its optimum weight are in 25-
Between 35%；
The net taste emulsion polymer of lotion system；
The high score subclass dispersant includes one or two kinds of high score subclass special acrylic acid polymer；
The defoamer is mineral oil modified silicone.
2. it is a kind of compound except haze is dispelled the preparation method of aldehyde emulsion paint as claimed in claim 1, it is characterized in that, including following step
Suddenly,
Step 1, premixing：Suitable water, high score subclass dispersant and multifunctional assistant are added in dispersion cylinder, makes each component
It is sufficiently mixed uniformly, generates the material of colloidal, it is spare；
Step 2, grinding distribution：In above-mentioned manufactured colloidal material, add nano-photo catalytic carbon silicon compound material and face is filled out
Material, under high-speed dispersion equipment, mashing grinding a period of time, meanwhile, color stuffing high-speed stirred high-rate of shear effect under,
Primary particle is dispersed into, and under the action of dispersing aid system, obtains stably dispersing state, until fineness is made 45
White slurry material below μm；
Step 3, adds lotion：Into the above-mentioned white slurry material that fineness requirement is made, the water of remaining part is added, then, then is added
Enter lotion, be uniformly mixed；
Step 4, adds other auxiliary agents：Sequentially add suitable coalescents and multifunctional assistant, with obtained required except haze is dispelled
Aldehyde emulsion paint；
Step 5, packaging：By above-mentioned except haze aldehyde emulsion paint of dispelling is fitted into tank body；
In above-mentioned steps one, also need to be separately added into suitable wetting agent and-pH conditioning agents in dispersion cylinder；In step 4, also
Need to add suitable rheological agent；
In above-mentioned steps one, each component is sufficiently mixed uniformly, its speed of agitator is controlled between 300-500RPM；Above-mentioned steps
In two, the rotating speed of high-speed stirred is controlled between 1200-1400RPM；And in step 3, its rotating speed is controlled in 500-700 RPM
Between.
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| CN107216754A (en) * | 2017-06-12 | 2017-09-29 | 广州立邦涂料有限公司 | One kind is except haze interiro wall latex paint and preparation method thereof |
| CN107815197A (en) * | 2017-10-25 | 2018-03-20 | 广东顺德嘉乐士涂料有限公司 | A kind of self-cleaning compound aldehyde art finish and preparation method thereof of dispelling of reaction of macromolecule |
| CN112961551B (en) * | 2021-03-03 | 2022-04-05 | 华中师范大学 | A kind of titanium dioxide catalytic air purification coating and preparation method and application thereof |
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| CN102277051A (en) * | 2010-06-09 | 2011-12-14 | 上海申得欧有限公司 | TiO2 visible light internal wall emulsion paint without volatile organic compounds (VOC) and preparation method thereof |
| CN103194147A (en) * | 2013-04-25 | 2013-07-10 | 广东顺德嘉乐士涂料有限公司 | Nanometre photocatalysed formaldehyde-eliminating emulsion paint and preparation method thereof |
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| CN1302079C (en) * | 2004-01-15 | 2007-02-28 | 中山大学 | Light-catalyzed air-cleaning water environmental protection paint for inner wall |
| CN1803949A (en) * | 2005-12-27 | 2006-07-19 | 上海大学 | Building coating material with air purification function and preparation method thereof |
| KR101347724B1 (en) * | 2012-04-10 | 2014-01-06 | (주)디오 | Method For Preparing Multi-Functional Filler Useful For Wall Finishing Materials |
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| CN102277051A (en) * | 2010-06-09 | 2011-12-14 | 上海申得欧有限公司 | TiO2 visible light internal wall emulsion paint without volatile organic compounds (VOC) and preparation method thereof |
| CN103194147A (en) * | 2013-04-25 | 2013-07-10 | 广东顺德嘉乐士涂料有限公司 | Nanometre photocatalysed formaldehyde-eliminating emulsion paint and preparation method thereof |
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